A short treatise on the designing and construction of gearing and mill-work. Accompanied by an explanation of the construction and use of the odontograph of Prof. Willis .. (1873)
[Scott, David] engineer. [from old catalog] · New York, D. Appleton and company · leaf 57
efe D E, making an angle B D M with the pitch line equal to B c A, and the involute A 6 be moved intothe position h h, it will drive the sloped tooth to the position P m, always touching it in the line A c H;and the velocity of the circumference of the pitch circle will always be equal to that of… … radius of pitch circle In a rack of this kind, the locus of contact ofthe teeth being the tangent line h H, thesloping teeth will be pressed downwards by acertain portion of the working pressure, whichin some cases may be an advantage in itselfby neutralizing vibration, and the advantageof a…
Gearing · Mills and mill-work · Odontograph
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